update: The NSRI, Police and emergency services have extended sincerest sympathies to the family of missing Andrey Dreyer, 19, of Pretoria, a student at a Cape Town College. His brother, and friends are from a Cape Town University. They were holidaying at their families holiday house in Eerste River at the time.An extensive continuing search by NSRI Oyster Bay and NSRI St Francis Bay volunteers and Police, today, revealed no sign of the missing teenager who is missing and who is presumed to have drowned after being caught in a rip-current while swimming with his brother and friends on Thursday afternoon, 06th July.Sea conditions and unfavorable terrain are hampering the ongoing search and while a Police Dive Unit are due to join the search at this stage only shore patrols can be conducted and Police have taken over the command of the ongoing search operation.SEA RESCUE , STATION 36 – OYSTER BAY and STATION 21, ST FRANCIS BAYEerste River Thursday 05th July 2012. Teenager missing:At 17h10 on the afternoon of Thursday, 05th July, NSRI Oyster Bay and NSRI St Francis Bay volunteers were alerted following a request for assistance from police reporting two young men in difficulty in the surf at Eerste River Main Beach, near to the Tsitsikamma Nature Reserve, between Cape St Francis and Plettenberg Bay, on a remote stretch of coastline.A 22 year old and a 19 year old, brothers from Pretoria, were reportedly caught in a rip current while taking a late afternoon swim. The 22 year old managed to get ashore but his brother disappeared after approximately 10 minutes in the surf and has not been seen since.Sea conditions are rough.An NSRI Oyster Bay volunteer sea rescue duty crew responded to the scene arriving after dark and joined police, the brother and a group of the brothers university friends who are on vacation together. Shore patrols were conducted but no sign of the missing teenager has been found.A police dive unit has been alerted from Port Elizabeth.At this stage the teenager is missing.The brothers parents, who live in Pretoria, are being kept abreast of developments.Names are not being released at this stage.Police will open an inquest docket.